content: /*
   * Copyright 2016-present David Karnok
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package hu.akarnokd.rxjava3.functions;
  
  import io.reactivex.rxjava3.functions.*;
  
  /**
   * Utility methods to work with functional interfaces of this package.
   */
  public final class FunctionsEx {
  
      /** Utility class. */
      private FunctionsEx() {
          throw new IllegalStateException("No instances!");
      }
  
      /** Implements many consumer interfaces to no-op. */
      @SuppressWarnings("rawtypes")
      enum EmptyConsumer implements
      Consumer, BiConsumer, Consumer3, Consumer4, Consumer5, Consumer6, Consumer7, Consumer8, Consumer9 {
          INSTANCE;
  
          @Override
          public void accept(Object t1, Object t2, Object t3, Object t4, Object t5, Object t6, Object t7, Object t8,
                  Object t9) throws Exception {
          }
  
          @Override
          public void accept(Object t1, Object t2, Object t3, Object t4, Object t5, Object t6, Object t7, Object t8)
                  throws Exception {
          }
  
          @Override
          public void accept(Object t1, Object t2, Object t3, Object t4, Object t5, Object t6, Object t7)
                  throws Exception {
          }
  
          @Override
          public void accept(Object t1, Object t2, Object t3, Object t4, Object t5, Object t6) throws Exception {
          }
  
          @Override
          public void accept(Object t1, Object t2, Object t3, Object t4, Object t5) throws Exception {
          }
  
          @Override
          public void accept(Object t1, Object t2, Object t3, Object t4) throws Exception {
          }
  
          @Override
          public void accept(Object t1, Object t2, Object t3) throws Exception {
          }
  
          @Override
          public void accept(Object t1, Object t2) throws Exception {
          }
  
          @Override
          public void accept(Object t) throws Exception {
          }
      }
  
      /**
       * Returns a Consumer1-9 shared instance that ignores the argument(s) of its {@code accept()} methods.
       * @param <T> the combined types of Consumer 1-9.
       * @return the empty Consumer1-9 shared instance
       */
      @SuppressWarnings("unchecked")
      public static <T extends
      Consumer<Object>
      & BiConsumer<Object, Object>
      & Consumer3<Object, Object, Object>
      & Consumer4<Object, Object, Object, Object>
      & Consumer5<Object, Object, Object, Object, Object>
      & Consumer6<Object, Object, Object, Object, Object, Object>
      & Consumer7<Object, Object, Object, Object, Object, Object, Object>
      & Consumer8<Object, Object, Object, Object, Object, Object, Object, Object>
      & Consumer9<Object, Object, Object, Object, Object, Object, Object, Object, Object>>
      T emptyConsumer() {
          return (T)EmptyConsumer.INSTANCE;
      }
  }
  